@font-face {
  font-family: 'Roboto Regular';
  src: url('../assets/fonts/Roboto-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: block;
}

@font-face {
  font-family: 'Roboto Black';
  src: url('../assets/fonts/Roboto-Black.woff2') format('woff2');
  font-weight: 900;
  font-style: normal;
  font-display: block;
}

:root {
  --brand-primary: #0B5345;
  --brand-accent: #6FB344;
  --font-title: 'Roboto Black', sans-serif;
  --font-body: 'Roboto Regular', sans-serif;

  --text-main: #1a1a1a;
  --text-muted: #5a6b66;
  --bg-page: #f2f5f3;
  --bg-card: #ffffff;
  --border-soft: #d7e0dc;
  --danger: #b3261e;

  --tap-min: 48px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg-page);
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.4;
  -webkit-tap-highlight-color: transparent;
}

h1, h2, h3 {
  font-family: var(--font-title);
  font-weight: 900;
  margin: 0 0 12px;
}

button {
  font-family: var(--font-body);
}

.app {
  max-width: 640px;
  margin: 0 auto;
  padding: 16px 16px 96px;
}

/* Encabezado de la app */
.app-header {
  background: var(--brand-primary);
  margin: -16px -16px 20px;
  padding: 28px 24px;
  display: flex;
  justify-content: center;
}

.app-header img {
  width: 100%;
  max-width: 480px;
  height: auto;
}

.step-indicator {
  display: flex;
  gap: 6px;
  margin-bottom: 20px;
}

.step-indicator .dot {
  flex: 1;
  height: 4px;
  border-radius: 2px;
  background: var(--border-soft);
}

.step-indicator .dot.active,
.step-indicator .dot.done {
  background: var(--brand-primary);
}

.step {
  display: none;
}

.step.active {
  display: block;
}

.step h2 {
  color: var(--brand-primary);
  font-size: 22px;
}

.step-subtitle {
  color: var(--text-muted);
  margin: -8px 0 20px;
}

/* Campos de formulario */
.field {
  margin-bottom: 20px;
}

.field label {
  display: block;
  font-weight: 700;
  margin-bottom: 8px;
  font-size: 15px;
}

.field input[type="text"],
.field input[type="number"],
.field textarea,
input[type="date"] {
  width: 100%;
  min-height: var(--tap-min);
  padding: 12px 14px;
  font-size: 17px;
  font-family: var(--font-body);
  border: 2px solid var(--border-soft);
  border-radius: 10px;
  background: var(--bg-card);
  color: var(--text-main);
}

input[type="date"] {
  color-scheme: light;
}

input[type="date"]::-webkit-calendar-picker-indicator {
  filter: invert(24%) sepia(24%) saturate(1600%) hue-rotate(122deg) brightness(90%);
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
}

input[type="date"]::-webkit-calendar-picker-indicator:hover {
  background: var(--bg-page);
}

.select-field {
  display: block;
  width: 100%;
  min-height: var(--tap-min);
  padding: 12px 14px;
  font-size: 16px;
  font-weight: 700;
  font-family: var(--font-body);
  border: 2px solid var(--border-soft);
  border-radius: 10px;
  background: var(--bg-card);
  color: var(--text-main);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%230B5345'%3E%3Cpath d='M5.5 7.5L10 12l4.5-4.5' stroke='%230B5345' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

.select-field:focus {
  outline: none;
  border-color: var(--brand-primary);
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--brand-primary);
}

.field textarea {
  min-height: 90px;
  resize: vertical;
}

/* Botones tipo tarjeta para selección única */
.choice-group {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.choice-group.cols-1 {
  grid-template-columns: 1fr;
}

.choice-btn {
  min-height: var(--tap-min);
  padding: 12px 14px;
  border: 2px solid var(--border-soft);
  border-radius: 10px;
  background: var(--bg-card);
  color: var(--text-main);
  font-size: 16px;
  font-weight: 700;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.choice-btn:active {
  transform: scale(0.98);
}

.choice-btn.selected {
  border-color: var(--brand-primary);
  background: var(--brand-primary);
  color: #fff;
}

/* Bloques de categoría */
.category-card {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: 14px;
  padding: 18px;
  margin-bottom: 18px;
}

.category-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.category-card-header h3 {
  font-size: 17px;
  color: var(--brand-primary);
  margin: 0;
}

.remove-category-btn {
  background: none;
  border: none;
  color: var(--danger);
  font-size: 15px;
  font-weight: 700;
  padding: 8px;
  cursor: pointer;
}

.treatment-group {
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  padding: 14px;
  margin-top: 16px;
  background: var(--bg-page);
}

.subfield-label {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-muted);
  margin: 16px 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.subfield-label:first-child {
  margin-top: 0;
}

.date-row {
  margin-top: 10px;
}

.date-row label {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.add-category-btn {
  width: 100%;
  min-height: var(--tap-min);
  border: 2px dashed var(--brand-primary);
  background: none;
  color: var(--brand-primary);
  border-radius: 10px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  margin-bottom: 8px;
}

/* Checkbox conforme */
.checkbox-field {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: var(--tap-min);
  padding: 12px 14px;
  border: 2px solid var(--border-soft);
  border-radius: 10px;
  background: var(--bg-card);
}

.checkbox-field input {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.checkbox-field label {
  font-weight: 700;
  margin: 0;
}

/* Navegación entre pasos */
.step-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-page);
  border-top: 1px solid var(--border-soft);
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  display: flex;
  gap: 10px;
  max-width: 640px;
  margin: 0 auto;
}

.btn {
  flex: 1;
  min-height: var(--tap-min);
  border-radius: 10px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--brand-primary);
  color: #fff;
  border-color: var(--brand-primary);
}

.btn-secondary {
  background: none;
  color: var(--brand-primary);
  border-color: var(--brand-primary);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.error-text {
  color: var(--danger);
  font-size: 14px;
  margin-top: -12px;
  margin-bottom: 16px;
  display: none;
}

.error-text.visible {
  display: block;
}

/* Resultado / tarjeta */
.result-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 20px;
}

.share-hint {
  font-size: 14px;
  color: var(--text-muted);
  text-align: center;
  display: none;
}

.share-hint.visible {
  display: block;
}

/* --- Tarjeta de sanidad (también usada como export) --- */
.sanidad-card {
  width: 100%;
  max-width: 720px;
  background: var(--bg-card);
  font-family: var(--font-body);
  color: var(--text-main);
  border: 1px solid var(--border-soft);
}

.sanidad-card .card-header {
  background: var(--brand-primary);
  padding: 22px 28px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.sanidad-card .card-header img {
  width: 100%;
  max-width: 480px;
  height: auto;
}

.sanidad-card .card-header-title {
  font-family: var(--font-title);
  font-weight: 900;
  color: #fff;
  font-size: 19px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.sanidad-card .card-body {
  padding: 24px 28px;
}

.sanidad-card .lote-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 24px;
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 2px solid var(--brand-accent);
}

.sanidad-card .lote-item .lote-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.sanidad-card .lote-item .lote-value {
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 16px;
}

.sanidad-card .categoria-block {
  margin-bottom: 22px;
}

.sanidad-card .categoria-title {
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 18px;
  color: var(--brand-primary);
  margin-bottom: 10px;
}

.sanidad-card table {
  width: 100%;
  border-collapse: collapse;
}

.sanidad-card th {
  text-align: left;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #fff;
  background: var(--brand-primary);
  padding: 8px 12px;
}

.sanidad-card td {
  padding: 9px 12px;
  font-size: 14px;
  border-bottom: 1px solid var(--border-soft);
}

.sanidad-card tr:last-child td {
  border-bottom: none;
}

.sanidad-card .comentarios-block {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--border-soft);
}

.sanidad-card .comentarios-block .lote-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.sanidad-card .comentarios-block p {
  margin: 0;
  font-size: 14px;
  white-space: pre-wrap;
}

.sanidad-card .card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 2px solid var(--brand-accent);
}

.sanidad-card .responsable-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.sanidad-card .responsable-value {
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 15px;
}

.sanidad-card .conforme-seal {
  border: 3px solid var(--brand-accent);
  color: var(--brand-accent);
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 8px 16px;
  border-radius: 8px;
  transform: rotate(-4deg);
}

@media (max-width: 400px) {
  .choice-group {
    grid-template-columns: 1fr;
  }
}